Charles Darwin 1809-1882

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Charles Darwin 1809-1882

Evidence

molecular evidence

how evolution has occurred

Compare the DNA base sequence

anatomical evidence

checking for common ancestry

Ex. : homologous structures

fossil evidence

Evolution

Mechanisms of Change

Artificial Selection

allowing only the plants and animals with desirable characteristics to reproduce

Natural Selection

Genetic Drift

a change in the gene pool of a small population that takes place strictly by chance

Genetic Variation/Gene Flow/ Migration

any movement of genes from one population to another

Mutation

a change in the DNA sequence

Work/ Achievments

found fossils of extinct animals that were similar to modern species

1881 The Formation of Vegetable Mould

1871 The Descent of Man

the Origin of Species (1859)

IV. all species have one common ancestor

many species result of DIVERGENCE made possible by ISOLATION

III. the primary mechanism for evolution was a process called natural selection

Ex. Darwin's Finches

III. Variation, naturally occuring

II. Competition between & within species

I. CHANGES in the environment

survival or extinction is determined by that organism's ability to adapt to its environment

II. evolutionary change was gradual, requiring thousands to millions of years

I. Evolution did occur

1854 Barnacles

1842 The Structure and Distribution of Coral Reefs

Life

1882 Death on April 19th

1859 Publication of The Origin of Species

1842 First unpublished ideas on Evolution

1839 marriage to Emma Wedgwood

stomach and heart problems due to overwork

1837 was elected to the Council of the Geographical Society

1831–1836 Voyage of the Beagle

expedition to chart the coastline of South America

1827 enrolled in a Bachelor of Arts course at Christ's College, Cambridge

joined the Plinial Society

a group of students interested in natural history

enrolled at the University of Edinburgh to study medicince

revolted by the brutality of sugery and neglected his studies

british naturalist

born Feb. 1809 died April 1882